He is said _______ for the International Criminal Police Organization for many years.
| A．to working | B．to work | C．to have worked | D．working |
.
The reason for their failure, you know, was _______ they didn’t get fully prepared for it.
| A．why | B．whether | C．that | D．what |
.
. John promised his parents he _______ not smoke again, and he has not smoked ever since.
| A．would | B．could | C．should | D．might |
.
My brother left home five years ago. I _______ nothing from him up to now.
| A．hear | B．heard | C．have heard | D．had heard |
.
. The power to our region has been _______ by the heavy snow.
| A．cut off | B．cut down | C．cut away | D．cut up |
.
. Though he graduated from a famous university, he was _______ failure as _______ teacher.
| A．a; a | B．不填; a | C．不填; the | D．不填 |